diff options
Diffstat (limited to 'include/linux/crypto.h')
| -rw-r--r-- | include/linux/crypto.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/crypto.h b/include/linux/crypto.h index b164da5e129e..1d2a6c515d58 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -13,6 +13,8 @@ #define _LINUX_CRYPTO_H #include <linux/completion.h> +#include <linux/errno.h> +#include <linux/list.h> #include <linux/refcount.h> #include <linux/slab.h> #include <linux/types.h> @@ -124,6 +126,9 @@ */ #define CRYPTO_ALG_FIPS_INTERNAL 0x00020000 +/* Set if the algorithm supports request chains. */ +#define CRYPTO_ALG_REQ_CHAIN 0x00040000 + /* * Transform masks and values (for crt_flags). */ @@ -174,6 +179,7 @@ struct crypto_async_request { struct crypto_tfm *tfm; u32 flags; + int err; }; /** @@ -540,5 +546,23 @@ int crypto_comp_decompress(struct crypto_comp *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen); +static inline void crypto_reqchain_init(struct crypto_async_request *req) +{ + req->err = -EINPROGRESS; + INIT_LIST_HEAD(&req->list); +} + +static inline void crypto_request_chain(struct crypto_async_request *req, + struct crypto_async_request *head) +{ + req->err = -EINPROGRESS; + list_add_tail(&req->list, &head->list); +} + +static inline bool crypto_tfm_is_async(struct crypto_tfm *tfm) +{ + return tfm->__crt_alg->cra_flags & CRYPTO_ALG_ASYNC; +} + #endif /* _LINUX_CRYPTO_H */ |